Elastomeric pavement repair composition for pavement failure and a method of making the same

ABSTRACT

An elastomeric pavement repair composition for pavement failure and a method of preparation thereof comprising of paving grade asphalt and rubber. The asphalt is heated to an elevated temperature and the rubber is combined therewith. The resulting composition is mixed to form a hot jellied composition which can be applied to cracked or distressed pavements to repair the same.



1. AN ELASTOMERIC PAVEMENT REPAIR MATERIAL WHICH CONSISTS ESSENTIALLY OF PAVING GRADE ASPHALT WITH A PENETRATION RANGE OF 10 THRUGH 300 AND PARTICULATE NON-OIL RESISTANT ASPHALT SOLUBLE RUBBER WHICH HAVE BEEN MIXED IN A RATIO OF ABOUT TWO TO ABOUT THREE PARTS ASPHALT TO ABOUT ONE PART RUBBER AND WHICH HAVE BEEN HEATED TOGETHER AT A TEMPERATURE WITHIN THE RANGE OF ABOUT 350* AND ABOUT 500*F TO FORM A JELLIED COMPOSITION.
 2. The elastomeric pavement repair material as defined in claim 1 wherein the paving grade asphalt and rubber have been mixed in a ratio of about three parts asphalt to about one part rubber and have been heated together at a temperature of about 350*F to form a jellied composition.
 3. The elastomeric pavement repair material as defined in claim 1 wherein the rubber is reclaimed rubber.
 4. The elastomeric pavement repair material as defined in claim 1 wherein the paving grade asphalt is 85-100 penetration grade asphalt.
 5. The elastomeric pavement repair material as defined in claim 1 wherein the material consists essentially of about three parts of 85-100 penetration grade asphalt and one part of partially devulcanized reclaimed rubber.
 6. The elastomeric pavement repair material as defined in claim 1 wherein the material consists essentially of about two to about three parts of 85-100 penetration grade asphalt and one part whole tire rubber.
 7. The elastomeric pavement repair material as defined in claim 1 wherein the material consists essentially of about two to about three parts of 85-100 penetration grade asphalt and one part reclaimed rubber.
 8. The elastomeric pavement repair material as defined in claim 1 wherein the material consists essentially of about two to about three parts of 85-100 penetration grade asphalt and one part of partially devulcanized reclaimed rubber.
 9. An elastomeric pavement repair material which consists essentially of paving grade asphalt with a penetration rangE of 10 through 300 and rubber tire buffings of non-oil resistant asphalt soluble rubber which have been mixed in a ratio of about 2 to about 3 parts asphalt to about one part rubber and which have been together at a temperature within the range of about 350* and about 500*F to form a jellied composition.
 10. The elastomeric pavement repair material as defined in claim 9 wherein the paving grade asphalt is 85-100 penetration grade asphalt.
 11. A method of preparing an elastomeric pavement repair material which includes the steps of: heating paving grade asphalt with a penetration range of 10 through 300 to a temperature within the range of from about 350* to about 500*F; adding one part particulate, non-oil resistant asphalt soluble rubber to the heated asphalt in the ratio of about two to about three parts of asphalt to one part rubber; and mixing the resulting asphalt and rubber mixture to form a jellied composition.
 12. The method as defined in claim 11 wherein about three parts of the paving grade asphalt are heated to a temperature of about 350*F; one part of the rubber is added to the heated asphalt; and the resulting asphalt and rubber mixture is mixed at a temperature of about 350*F to form a jellied composition.
 13. The method as defined in claim 12 wherein the rubber is reclaimed rubber.
 14. The method of preparing elastomeric pavement repair material as defined in claim 11 wherein the paving grade asphalt is 85-100 penetration grade asphalt.
 15. The method as defined in claim 11 wherein about two parts to about three parts of 85-100 penetration grade asphalt are heated to a temperature within the range of about 350* and about 500*F; one part ground whole tire rubber is added to the heated asphalt; and the resulting asphalt and rubber mixture is mixed at a temperature within the range of about 350* and about 500*F to form a jellied composition.
 16. The method as defined in claim 11 wherein about two parts to about three parts of 85-100 penetration grade asphalt are heated to a temperature within the range of about 350* and about 500*F; one part of reclaimed rubber is added to the heated asphalt; and the resulting asphalt and rubber mixture is mixed at a temperature within the range of about 350* and about 500*F to form a jellied composition.
 17. The method as defined in claim 11 wherein about two parts to about three parts of 85-100 penetration grade asphalt are heated to a temperature within the range of about 350* and about 500*F, one part of partially devulcanized reclaimed rubber is added to the heated asphalt, and the resulting asphalt and rubber mixture is mixed at a temperature within the range of about 350* and about 500*F to form a jellied composition.
 18. A method as defined in claim 11 wherein about two parts to about three parts of 85-100 penetration grade asphalt are heated to a temperature within the range of about 350* and about 500*F; one part of asphalt soluble rubber is added to the heated asphalt; and the resulting asphalt and rubber mixture is mixed at a temperature within the range of about 350* and about 500*F to form a jellied composition.
 19. A method of preparing an elastomeric pavement repair material which includes the steps of: heating paving grade asphalt with a penetration range of 10 through 300 to a temperature within the range of from about 350* to about 500*F; adding about one part rubber tire buffings of non-oil resistant asphalt soluble rubber to the heated asphalt in the ratio of about two to about three parts of asphalt to one part rubber; and mixing the resulting asphalt and rubber mixture to foRm a jellied composition.
 20. A method as defined in claim 19 wherein the asphalt is 85-100 penetration grade asphalt. 